EP2951102B1 - Container - Google Patents
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- Publication number
- EP2951102B1 EP2951102B1 EP14717215.9A EP14717215A EP2951102B1 EP 2951102 B1 EP2951102 B1 EP 2951102B1 EP 14717215 A EP14717215 A EP 14717215A EP 2951102 B1 EP2951102 B1 EP 2951102B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- bottom wall
- top wall
- wall
- side walls
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007788 liquid Substances 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 description 15
- 238000007789 sealing Methods 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
- B65D5/029—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body the tubular body presenting a special shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
- B65D5/06—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end-closing or contents-supporting elements formed by folding inwardly a wall extending from, and continuously around, an end of the tubular body
- B65D5/064—Rectangular containers having a body with gusset-flaps folded outwardly or adhered to the side or the top of the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/18—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding a single blank to U-shape to form the base of the container and opposite sides of the body portion, the remaining sides being formed primarily by extensions of one or more of these opposite sides, e.g. flaps hinged thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/72—Contents-dispensing means
- B65D5/727—Dispensing openings provided in the upper end-walls of tubular containers, the openings being closed by means of separate stopper or other closure elements
Definitions
- This invention relates to a container especially designed to contain liquids, according to the preamble of claim 1.
- the field of application of the invention is that of packaged containers, that is to say, containers obtained by processing a preformed blank, which is usually repeated in sequence on a continuous web wound on a roll and which is cut, folded and glued/sealed to form the final three-dimensional shape of each container.
- these containers are made from a blank of paper on which two or more layers of different materials are superposed by continuous rolling to give the final container the required properties of impermeability, safety, strength and, especially if used to contain foodstuffs, hygiene.
- Packaged containers known in the state of the art are generally in the shape of right-angle prisms with polygonal bases substantially identical in shape, typically rectangular or square. Hence, the lateral faces of each container, typically four in number, are vertical when the container is made to stand on one of its bases and in contact with other containers aligned on a conveyor belt of a filling station of a packaging machine which fills the containers with a product.
- the containers because they are made essentially of coated cardboard, tend to puff out round the middle where there are no stiffening parts (folds and/or zones where the blank flaps are glued/sealed) leading to friction caused by mutual contact of the puffed out zones.
- the containers are less easy to handle on a conveyor belt because they tend to be closely packed together.
- prior art containers must be sufficiently spaced to be easily removed from the conveyor belt. That means they occupy a greater length of the conveyor belt than simply the sum of the longitudinal extensions of their bases, which in turn means the packaging machine takes more time to fill them.
- prior art containers have a top and bottom of the same size and a middle part which is normally larger on account of the pressure of the liquid inside, causig the middle part to puff out, with the risk of the containers toppling over when they reach buffer storage zones and leading to problems on the packaging line. In effect, the sum of the additional widths of the containers lined up in a row on the conveyor belt causes the containers to be push each other until one is eventually overbalanced and falls.
- Another example of a disadvantage is when a container needs to be pulled out of its typical plastic overwrap by which a certain number of containers are held tightly together in a pack: removing a container from the pack is considerably difficult and it is usually necessary to tear off the plastic overwrap completely, which means that the remaining containers of the pack must be rearranged for storage.
- prior art containers often have folded flaps glued and/or sealed at the top of them, which means that the space available to make an opening is limited to the free space next to these flaps.
- Movable closing means are associated with a hole, typically a plastic spout equipped with a tab or sealing layer to cover ad protect the hole and with a cap for subsequent opening/closing after the tab has been torn or the sealing layer perforated and removed in order to pour out the contents of the container.
- These closing means must have specified dimensions, also in proportion to the volume of the container and, in many cases, these dimensions are not compatible with the available space left by the folded flaps which are glued and/or sealed at the top of the container.
- WO 2012/077594 discloses a container suitable for fluids, according to the preamble of claim 1.
- US 3,731,872 discloses a container with side walls that are alternatingly tapered upwards and downwards. The container in US 3,731,872 is designed to create ventilation space between other similar containers.
- This invention has for its purpose to overcome the above mentioned disadvantages of the prior art and to provide a container which is practical to use and handle, for example when the container is in close contact with other containers, and a blank from which the container can be produced.
- One aim of this invention is to provide a container with a large surface at the top of it which can be used to make openings and to apply corresponding means for adjusting the openings.
- Another aim of the invention is to provide a container which is stable when full and easy to hold in one hand.
- a further aim is to provide a container which can be produced by a packaging machine in a few simple steps from a packaging blank.
- the object of this invention is a container and a related blank having the features set out in the accompanying claims.
- the invention makes it possible to place a multiplicity of containers side by side in close mutual contact and to guarantee that the containers, even when full, are easy and practical to pick up, move and handle by hand or, if necessary, by an automatic machine.
- large openings can be made in the second base, or top base, of the container to allow the container to be quickly filled and emptied. Furthermore, the openings can be made centrally in the top base so as to allow the liquid contents to be uniformly emptied from the container.
- the numeral 10 denotes a container in its entirety , especially a container for liquids produced from a packaging blank, usually of the multilayer type, denoted in its entirety by the numeral 30 ( Figures 4 and 5 ).
- the container 10 produced comprises a bottom wall 12 substantially polygonal in shape, designed to constitute a stable supporting surface for the container 10, and a top wall 14 substantially polygonal in shape and defining the top surface of the container 10.
- the top wall 14 is parallel to the bottom wall 12.
- the bottom wall 12 and the top wall 14 are each delimited by a plurality of edges 13 and 15.
- the container 10 also has a plurality of side walls 16, each connected to a first edge 13 of the bottom wall 12 and to a second edge 15 of the top wall 14.
- the side walls 16 are mutually connected along longitudinal edges 17 to define the volume of the container 10.
- edges 13 of the bottom wall 12 and the edges 15 of the top wall 14 differ in length. More specifically, the first edge 13 of the bottom wall 12 and the corresponding second edge 15 of the top wall 14, when they delimit the same side wall 16, differ in length.
- the side walls 16 are non-rectangular in shape and are not perpendicular to the bottom and top walls 12, 14.
- the side walls 16 have a planar, trapezoidal shape and are also substantially oblique.
- the side walls 16 are delimited at the top and at the bottom by edges 15, 13 which differ in length and which, when the container 10 is in the erect position, are also horizontally offset and hence are not directly above each other.
- This configuration means, advantageously, that the lateral surface of the container does not have edges 17 which are substantially vertical and therefore when the containers are full and in mutual contact, the respective edges of their second bases are not packed together.
- the bottom wall 12 is rectangular in shape.
- the bottom wall 12 has respective pairs of opposite parallel edges 13.
- the top wall 14 is also rectangular in shape.
- the top wall 14, too has respective pairs of opposite parallel edges 15.
- the top wall 14 is oriented in space (while remaining parallel to the bottom wall 12) in such a way that its edges 15 are parallel to the edges 13 of the bottom wall.
- the bottom wall 12 might, for example, be square and the top wall 14 rectangular or vice versa.
- FIGS 1-3 show an example embodiment of a container not forming part of the invention.
- Figure 6 shows an example embodiment of a container according to the invention.
- the bottom wall 12 is rectangular while the top wall 14 is square.
- the length of the side of the square top wall 14 is a length between the length of the short edges and the length of the long edges of the rectangular bottom wall 12. In this situation, two opposed side walls 16 are convergent towards the bottom wall 12 while the other two side walls 16 are convergent towards the top wall 14.
- Figure 6 shows an embodiment, according to the invention, where the bottom wall 12 and the top wall 13 are both rectangular and while remaining parallel to each other, are oriented in space in such a way as to be angularly offset by 90° from each other (in their respective planes).
- the long edges of the bottom wall 12 are parallel to the short edges of the top wall 14.
- the bottom and top walls 12, 14 may be identical in size.
- all the side walls 16 are substantially oblique and, still more preferably, are all trapezoidal in shape.
- the container 10 has pairs of side walls 16 which are equal and opposite and the side walls 16 of each pair have the same inclination (equal in modulus, but opposite) relative to the bottom wall 12 and the top wall 14.
- the invention also has for its object a blank 30 for producing the container 10 described above.
- Figure 4 shows the blank 30 used for producing the container 10 of Figures 1-3
- the blank 30 of Figure 5 is used for producing the container 10 of Figure 6 .
- the blank 30 has fold lines 32, drawn with dashed lines, and foldable connecting flaps 34 juxtaposed with and/or superposed on each other, as is known in the prior art, and connectable to each other by gluing and/or sealing to define the shape and final volume of the container 10 by a sequence of operations on the blank 30.
- the folding, gluing and/or sealing operations performed by a packaging machine are substantially known and are not further specified here because they can be easily inferred by an expert in the trade.
- the fold lines 32 comprise longitudinal fold lines 32', which will form the edges 17 delimiting the side walls 16 of the container 10 when the blank 30 is folded for the purpose, and transversal fold lines 32", which will form the first edges 13 and the second edges 15 delimiting the bottom wall 12 and the top wall 14 of the finished container 10, respectively.
- the longitudinal fold lines 32' delimit, in the blank 30 of Figures 4 and 5 , side panels 19 which, when the container 10 is finished, form the external side walls 16 (that is to say, the walls normally visible) of the container 10, while the transversal fold lines 32" delimit, in the blank 30, base surfaces 20' and 20" which, when the container 10 is finished, form the bottom wall 12 and the top wall 14.
- the side panels 19 do not define the foldable connecting flaps 34 because the latter are folded inwards and their shape is of no relevance to the outside shape of the container 10.
- all the longitudinal fold lines 32' are inclined to a direction of extension (for example, the axis 30a) of the blank 30 and are convergent in pairs towards a respective one of the transversal fold lines 32".
- the longitudinal fold lines 32' considered in pairs, are convergent towards one or the other of the transversal fold lines 32" depending on the direction of convergence of the side wall 16 they define between them.
- transversal fold lines 32" lead to the nodes 33 defined by the points where the longitudinal fold lines 32' meet the transversal fold lines 32".
- the longitudinal fold lines 32' are neither parallel to each other nor parallel to a longitudinal axis of symmetry of the blank 30.
- This configuration means, advantageously, that the lateral surface of the container does not have edges which are substantially vertical and therefore when the containers are full and in mutual contact, the respective edges of their second bases are not packed together.
- the bases differ in shape and, more specifically, that the bottom wall 12 is rectangular in shape, while the top wall 14 is square in shape.
- the blank 30 of Figure 4 has a mainly longitudinal extension along an axis 30a and an elongate shape, with foldable connecting flaps 34 located at the base surface 20' defining the supporting bottom wall 12 and at two side panels 19 defining the side walls 16 which are opposite each other when the container 10 is finished.
- This longitudinally extending configuration of the blank 30 thus makes it possible for the top wall 14 to have a surface without foldable connecting flaps 34, which in turn means that this surface can be coated, decorated and/or perforated ideally to combine excellent aesthetic appeal with ease of production.
- the surface of the top wall 14 is provided in the central part of it with an opening 18 giving access to the inside of the container 10 and which, typically, has associated with it movable closing means for opening and closing the opening 18 itself, and comprising, for example, a plastic spout glued and/or sealed near the edges of the opening 18 and equipped with a screw cap, these means being, for convenience, not illustrated because they are of substantially known type.
- placing the opening centrally means that the opening can be made in a size such as to use most of the base surface, thereby improving inflow and outflow of container contents so that the container can be quickly filled and emptied.
- the blank of Figure 5 too, has fold lines 32 comprising longitudinal fold lines 32' and transversal fold lines 32".
- the longitudinal fold lines 32' are substantially convergent, in particular slightly convergent on each other and lead to nodes 33 defined by the poimts where they meet the transversal fold lines 32".
- the folding, gluing and/or sealing operations performed by a packaging machine to produce the finished container are substantially known and are not further specified here because they can be easily inferred by an expert in the trade.
- the blank 30 of Figure 5 has a substantially transversal extension, with the side panels 19 side by side along the longitudinal fold lines 32'.
- the foldable connecting flaps 34 are located at a side panel 19, defining a side wall 16 or a part thereof when the container is finished, and at both of the base surfaces 20' and 20", defining the bottom and top walls 12 and 14 of the container 10.
- the container produced from this blank is illustrated in Figure 6 and, as in the preceding case, has first edges 13 of the bottom wall 12 which differ in length from the corresponding second edges 15 of the top wall 14 when each first edge 13 and each second edge 15 delimit the same side wall 16.
- the side walls 16 are substantially oblique and, in particular, trapezoidal in shape.
- both the bottom and top walls 12 and 14 have the connecting flaps 34 on their respective surfaces.
- the bottom wall 12 has a surface which extends in space differently from the surface of the top wall 14.
- extends in space in this document means both extension in a certain space direction and the related angular orientation relative to any axis of rotation in space.
- the substantially oblique and, in particular, trapezoidal side walls 16 of the container 10 are such that the middle section of the container 10, which may be puffed out on account of the pressure of the liquid inside it, does not press against the next container in the row as they are pushed forward at their bases on the conveyor belt, thus avoiding the risk of them toppling over and the consequent problems on the packaging lines.
- the surface of the bottom wall 12 differs substantially in size from the surface of the top wall 14 so as to have a container 10 which is stable when it rests on its bottom wall 12, which has a streamlined form and is thus easy to hold, and which does not tend to be tightly packed against similar and/or identical containers placed side by side therewith and when full.
- the good structural rigidity of the container 10 allows packaging in packs or cases which can be stacked on top of each other in quantities greater than hitherto known.
- their prismatic shape and oblique trapezoidal walls of allows the containers 10 to be more easily grouped together in a packaging case and to easily extract a single container 10 from the case.
- the container 10 according to the invention can be packaged in a case consecutively alternating the vertical position and hence the supporting base of the container 10 with the next adjacent one/ones.
- the packaged container and the packaging blank according to the invention can be modified and adapted in several ways which an expert in the trade will easily infer and also that the details described above may be embodied in different ways and substituted for technically equivalent elements.
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Description
- This invention relates to a container especially designed to contain liquids, according to the preamble of claim 1. The field of application of the invention is that of packaged containers, that is to say, containers obtained by processing a preformed blank, which is usually repeated in sequence on a continuous web wound on a roll and which is cut, folded and glued/sealed to form the final three-dimensional shape of each container.
- Typically, these containers are made from a blank of paper on which two or more layers of different materials are superposed by continuous rolling to give the final container the required properties of impermeability, safety, strength and, especially if used to contain foodstuffs, hygiene.
- Packaged containers known in the state of the art are generally in the shape of right-angle prisms with polygonal bases substantially identical in shape, typically rectangular or square. Hence, the lateral faces of each container, typically four in number, are vertical when the container is made to stand on one of its bases and in contact with other containers aligned on a conveyor belt of a filling station of a packaging machine which fills the containers with a product. Once filled, the containers, because they are made essentially of coated cardboard, tend to puff out round the middle where there are no stiffening parts (folds and/or zones where the blank flaps are glued/sealed) leading to friction caused by mutual contact of the puffed out zones. This leads to a series of practical problems: for example, the containers are less easy to handle on a conveyor belt because they tend to be closely packed together. As a result, prior art containers must be sufficiently spaced to be easily removed from the conveyor belt. That means they occupy a greater length of the conveyor belt than simply the sum of the longitudinal extensions of their bases, which in turn means the packaging machine takes more time to fill them. Also, prior art containers have a top and bottom of the same size and a middle part which is normally larger on account of the pressure of the liquid inside, causig the middle part to puff out, with the risk of the containers toppling over when they reach buffer storage zones and leading to problems on the packaging line. In effect, the sum of the additional widths of the containers lined up in a row on the conveyor belt causes the containers to be push each other until one is eventually overbalanced and falls.
- Another example of a disadvantage is when a container needs to be pulled out of its typical plastic overwrap by which a certain number of containers are held tightly together in a pack: removing a container from the pack is considerably difficult and it is usually necessary to tear off the plastic overwrap completely, which means that the remaining containers of the pack must be rearranged for storage.
- Moreover, prior art containers often have folded flaps glued and/or sealed at the top of them, which means that the space available to make an opening is limited to the free space next to these flaps. Movable closing means are associated with a hole, typically a plastic spout equipped with a tab or sealing layer to cover ad protect the hole and with a cap for subsequent opening/closing after the tab has been torn or the sealing layer perforated and removed in order to pour out the contents of the container. These closing means must have specified dimensions, also in proportion to the volume of the container and, in many cases, these dimensions are not compatible with the available space left by the folded flaps which are glued and/or sealed at the top of the container.
-
WO 2012/077594 discloses a container suitable for fluids, according to the preamble of claim 1.US 3,731,872 discloses a container with side walls that are alternatingly tapered upwards and downwards. The container inUS 3,731,872 is designed to create ventilation space between other similar containers. - This invention has for its purpose to overcome the above mentioned disadvantages of the prior art and to provide a container which is practical to use and handle, for example when the container is in close contact with other containers, and a blank from which the container can be produced.
- One aim of this invention is to provide a container with a large surface at the top of it which can be used to make openings and to apply corresponding means for adjusting the openings.
- Another aim of the invention is to provide a container which is stable when full and easy to hold in one hand.
- A further aim is to provide a container which can be produced by a packaging machine in a few simple steps from a packaging blank.
- To achieve these aims, the object of this invention is a container and a related blank having the features set out in the accompanying claims.
- Advantageously, the invention makes it possible to place a multiplicity of containers side by side in close mutual contact and to guarantee that the containers, even when full, are easy and practical to pick up, move and handle by hand or, if necessary, by an automatic machine.
- Advantageously, large openings can be made in the second base, or top base, of the container to allow the container to be quickly filled and emptied. Furthermore, the openings can be made centrally in the top base so as to allow the liquid contents to be uniformly emptied from the container.
- Further aims, features and advantages of the invention will become more apparent from the following detailed description of a preferred embodiment of it, and of a variant thereof, provided purely by way of non-limiting example with reference to the accompanying drawings, in which:
-
Figure 1 is a schematic perspective view of a container not forming part of the invention; -
Figures 2 and 3 are, respectively, a front view and a side view of the container ofFigure 1 ; -
Figure 4 is a top view of a packaging blank from which the container ofFigure 1 can be produced; -
Figure 5 is a top view of a packaging blank from which a variant of a container according to the invention can be produced; -
Figure 6 is a schematic perspective view of a container according to the invention produced from the blank shown inFigure 5 . - With reference to
Figures 1 ,2 ,3 and6 , the numeral 10 denotes a container in its entirety , especially a container for liquids produced from a packaging blank, usually of the multilayer type, denoted in its entirety by the numeral 30 (Figures 4 and5 ). - The
container 10 produced comprises abottom wall 12 substantially polygonal in shape, designed to constitute a stable supporting surface for thecontainer 10, and atop wall 14 substantially polygonal in shape and defining the top surface of thecontainer 10. Thetop wall 14 is parallel to thebottom wall 12. - The
bottom wall 12 and thetop wall 14 are each delimited by a plurality ofedges - The
container 10 also has a plurality ofside walls 16, each connected to afirst edge 13 of thebottom wall 12 and to asecond edge 15 of thetop wall 14. Theside walls 16 are mutually connected alonglongitudinal edges 17 to define the volume of thecontainer 10. - Advantageously, the
edges 13 of thebottom wall 12 and theedges 15 of thetop wall 14 differ in length. More specifically, thefirst edge 13 of thebottom wall 12 and the correspondingsecond edge 15 of thetop wall 14, when they delimit thesame side wall 16, differ in length. - Thus, the
side walls 16 are non-rectangular in shape and are not perpendicular to the bottom andtop walls - The pairs of
edges top walls same side wall 16 are parallel to each other. - Further, in this configuration, the
side walls 16 have a planar, trapezoidal shape and are also substantially oblique. In effect, theside walls 16 are delimited at the top and at the bottom byedges container 10 is in the erect position, are also horizontally offset and hence are not directly above each other. This configuration means, advantageously, that the lateral surface of the container does not haveedges 17 which are substantially vertical and therefore when the containers are full and in mutual contact, the respective edges of their second bases are not packed together. Thebottom wall 12 is rectangular in shape. Thus, thebottom wall 12 has respective pairs of opposite parallel edges 13. Thetop wall 14 is also rectangular in shape. Thus, thetop wall 14, too, has respective pairs of opposite parallel edges 15. Further, thetop wall 14 is oriented in space (while remaining parallel to the bottom wall 12) in such a way that itsedges 15 are parallel to theedges 13 of the bottom wall. - Thus, the
bottom wall 12 might, for example, be square and thetop wall 14 rectangular or vice versa. - The bottom and top walls have corresponding
edges 13, 15 (that is to say connected to the same side wall 16) which are parallel to each other.Figures 1-3 show an example embodiment of a container not forming part of the invention.Figure 6 shows an example embodiment of a container according to the invention. - In
Figure 1 , thebottom wall 12 is rectangular while thetop wall 14 is square. Also, according to this embodiment, the length of the side of the squaretop wall 14 is a length between the length of the short edges and the length of the long edges of therectangular bottom wall 12. In this situation, twoopposed side walls 16 are convergent towards thebottom wall 12 while the other twoside walls 16 are convergent towards thetop wall 14. - This configuration is apparent from the two views of
Figures 2 and 3 which show that contiguous sides of thecontainer 10 converge in opposite directions (towards the top inFigure 2 and towards the bottom inFigure 3 ). -
Figure 6 shows an embodiment, according to the invention, where thebottom wall 12 and thetop wall 13 are both rectangular and while remaining parallel to each other, are oriented in space in such a way as to be angularly offset by 90° from each other (in their respective planes). In other words, the long edges of thebottom wall 12 are parallel to the short edges of thetop wall 14. - In this embodiment, the bottom and
top walls container 10 according to the invention, all theside walls 16 are substantially oblique and, still more preferably, are all trapezoidal in shape. Preferably, also, thecontainer 10 has pairs ofside walls 16 which are equal and opposite and theside walls 16 of each pair have the same inclination (equal in modulus, but opposite) relative to thebottom wall 12 and thetop wall 14. - The invention also has for its object a blank 30 for producing the
container 10 described above. -
Figure 4 shows the blank 30 used for producing thecontainer 10 ofFigures 1-3 , while the blank 30 ofFigure 5 is used for producing thecontainer 10 ofFigure 6 . - The blank 30 has
fold lines 32, drawn with dashed lines, andfoldable connecting flaps 34 juxtaposed with and/or superposed on each other, as is known in the prior art, and connectable to each other by gluing and/or sealing to define the shape and final volume of thecontainer 10 by a sequence of operations on the blank 30. The folding, gluing and/or sealing operations performed by a packaging machine are substantially known and are not further specified here because they can be easily inferred by an expert in the trade. More in detail, the fold lines 32 comprise longitudinal fold lines 32', which will form theedges 17 delimiting theside walls 16 of thecontainer 10 when the blank 30 is folded for the purpose, andtransversal fold lines 32", which will form thefirst edges 13 and thesecond edges 15 delimiting thebottom wall 12 and thetop wall 14 of thefinished container 10, respectively. - More specifically, the longitudinal fold lines 32' delimit, in the blank 30 of
Figures 4 and5 ,side panels 19 which, when thecontainer 10 is finished, form the external side walls 16 (that is to say, the walls normally visible) of thecontainer 10, while thetransversal fold lines 32" delimit, in the blank 30, base surfaces 20' and 20" which, when thecontainer 10 is finished, form thebottom wall 12 and thetop wall 14. Theside panels 19 do not define thefoldable connecting flaps 34 because the latter are folded inwards and their shape is of no relevance to the outside shape of thecontainer 10. - As shown in
Figures 4 and5 , all the longitudinal fold lines 32' are inclined to a direction of extension (for example, theaxis 30a) of the blank 30 and are convergent in pairs towards a respective one of thetransversal fold lines 32". In other words, the longitudinal fold lines 32', considered in pairs, are convergent towards one or the other of thetransversal fold lines 32" depending on the direction of convergence of theside wall 16 they define between them. - The
transversal fold lines 32" lead to thenodes 33 defined by the points where the longitudinal fold lines 32' meet thetransversal fold lines 32". In other words, the longitudinal fold lines 32' are neither parallel to each other nor parallel to a longitudinal axis of symmetry of the blank 30. This configuration means, advantageously, that the lateral surface of the container does not have edges which are substantially vertical and therefore when the containers are full and in mutual contact, the respective edges of their second bases are not packed together. - With reference in particular to the blank 30 illustrated in
Figure 4 , it should be noted that the bases differ in shape and, more specifically, that thebottom wall 12 is rectangular in shape, while thetop wall 14 is square in shape. - Also, the blank 30 of
Figure 4 has a mainly longitudinal extension along anaxis 30a and an elongate shape, with foldable connectingflaps 34 located at the base surface 20' defining the supportingbottom wall 12 and at twoside panels 19 defining theside walls 16 which are opposite each other when thecontainer 10 is finished. - In other words, in the first configuration of it, shown in
Figure 4 , theside walls 16 of the blank 30, opposite each other when the container is finished, which are aligned longitudinally along the axis ofextension 30a and which are separated from each other by thebase surface 20" defining thetop wall 14. - This longitudinally extending configuration of the blank 30 thus makes it possible for the
top wall 14 to have a surface without foldable connectingflaps 34, which in turn means that this surface can be coated, decorated and/or perforated ideally to combine excellent aesthetic appeal with ease of production. The surface of thetop wall 14 is provided in the central part of it with anopening 18 giving access to the inside of thecontainer 10 and which, typically, has associated with it movable closing means for opening and closing theopening 18 itself, and comprising, for example, a plastic spout glued and/or sealed near the edges of theopening 18 and equipped with a screw cap, these means being, for convenience, not illustrated because they are of substantially known type. Advantageously, placing the opening centrally means that the opening can be made in a size such as to use most of the base surface, thereby improving inflow and outflow of container contents so that the container can be quickly filled and emptied. - The blank of
Figure 5 , too, hasfold lines 32 comprising longitudinal fold lines 32' andtransversal fold lines 32". - In this case, too, the longitudinal fold lines 32' are substantially convergent, in particular slightly convergent on each other and lead to
nodes 33 defined by the poimts where they meet thetransversal fold lines 32". Also in the case of this variant embodiment, the folding, gluing and/or sealing operations performed by a packaging machine to produce the finished container are substantially known and are not further specified here because they can be easily inferred by an expert in the trade. - The blank 30 of
Figure 5 has a substantially transversal extension, with theside panels 19 side by side along the longitudinal fold lines 32'. - The foldable connecting
flaps 34 are located at aside panel 19, defining aside wall 16 or a part thereof when the container is finished, and at both of the base surfaces 20' and 20", defining the bottom andtop walls container 10. - The container produced from this blank is illustrated in
Figure 6 and, as in the preceding case, has first edges 13 of thebottom wall 12 which differ in length from the correspondingsecond edges 15 of thetop wall 14 when eachfirst edge 13 and eachsecond edge 15 delimit thesame side wall 16. Similarly, theside walls 16 are substantially oblique and, in particular, trapezoidal in shape. - In this case, as may be seen in
Figure 6 , both the bottom andtop walls - It should be noticed that according to the different embodiments of the
container 10 falling within the scope of the inventive concept, thebottom wall 12 has a surface which extends in space differently from the surface of thetop wall 14. The expression "extends in space" in this document means both extension in a certain space direction and the related angular orientation relative to any axis of rotation in space. - These features give the container according to the invention properties which make it more dynamic in space and easier to grip, and hence more practical to use, and which, at the same time, prevent it from adhering to identical containers placed in close contact therewith, when full, on a conveyor belt of a packaging machine.
- Indeed, the substantially oblique and, in particular,
trapezoidal side walls 16 of thecontainer 10 are such that the middle section of thecontainer 10, which may be puffed out on account of the pressure of the liquid inside it, does not press against the next container in the row as they are pushed forward at their bases on the conveyor belt, thus avoiding the risk of them toppling over and the consequent problems on the packaging lines. - Advantageously, the
oblique side walls 16 delimited by thelongitudinal edges 17, which are in turn inclined, impart high structural rigidity to thecontainer 10, preferably along the longitudinal axis of the container. - Advantageously, the surface of the
bottom wall 12 differs substantially in size from the surface of thetop wall 14 so as to have acontainer 10 which is stable when it rests on itsbottom wall 12, which has a streamlined form and is thus easy to hold, and which does not tend to be tightly packed against similar and/or identical containers placed side by side therewith and when full. - Advantageously, the good structural rigidity of the
container 10 allows packaging in packs or cases which can be stacked on top of each other in quantities greater than hitherto known. - Advantageously, their prismatic shape and oblique trapezoidal walls of allows the
containers 10 to be more easily grouped together in a packaging case and to easily extract asingle container 10 from the case. - Preferably, the
container 10 according to the invention can be packaged in a case consecutively alternating the vertical position and hence the supporting base of thecontainer 10 with the next adjacent one/ones. - It will be understood that the packaged container and the packaging blank according to the invention can be modified and adapted in several ways which an expert in the trade will easily infer and also that the details described above may be embodied in different ways and substituted for technically equivalent elements.
Claims (10)
- A container (10) for liquids, comprising:- a bottom wall (12) polygonal in shape designed to constitute a stable supporting surface for the container (10),- a top wall (14) polygonal in shape and substantially parallel to the bottom wall (12)- a plurality of side walls (16) connected to an edge (13) of the bottom wall (12) and to an edge (15) of the top wall (14) and mutually connected to constitute a lateral surface (16) of the container (10),the respective edge (13) of the bottom wall (12) and the respective edge (15) of the top wall (14) differing in length, the bottom wall (12) and the top wall (14) are parallel to each other, the container being characterized in that the top and bottom walls have a rectangular shape and are angularly offset by 90° from each other in their respective planes, the long edges of the bottom wall (12) being parallel to the short edges of the top wall (14).
- The container (10) according to claim 1, wherein the side walls (16) are trapezoidal in shape.
- The container (10) according to claim 1 or 2, wherein the side walls (16) are planar.
- The container (10) according to any one of the preceding claims, wherein for each of the side walls (16), the respective edge (13) of the bottom wall (12) and the respective edge (15) of the top wall (14) are parallel to each other.
- The container (10) according to any one of the preceding claims, wherein the side walls (16) are oblique to the bottom wall (12) and to the top wall (14).
- The container (10) according to claim 1, wherein the bottom wall (12) and the top wall (14) are identical in size.
- The container (10) according to any one of claims 1 to 5, wherein the bottom wall (12) has a geometrical shape which is different from the geometrical shape of the top wall (14).
- The container (10) according to any one of the preceding claims, wherein the surface of the top wall (14) is without folded connecting flaps (34) of a respective blank (30).
- The container (10) according to the preceding claim, comprising an opening (18) for access to the inside of the container (10) and located substantially in the central part of the surface of the top wall (14).
- The container (10) according to claim 9, comprising movable closing means associated with the opening (18) and used for the opening and closing thereof.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000052A ITRM20130052A1 (en) | 2013-01-29 | 2013-01-29 | PACKAGED CONTAINER AND RELATED PACKAGING SHEET. |
PCT/IT2014/000020 WO2014118813A1 (en) | 2013-01-29 | 2014-01-22 | Container and related blank |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2951102A1 EP2951102A1 (en) | 2015-12-09 |
EP2951102B1 true EP2951102B1 (en) | 2017-04-26 |
Family
ID=47953605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14717215.9A Active EP2951102B1 (en) | 2013-01-29 | 2014-01-22 | Container |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2951102B1 (en) |
IT (1) | ITRM20130052A1 (en) |
WO (1) | WO2014118813A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019128686A1 (en) * | 2017-12-29 | 2019-07-04 | 国力丰(中国)包装有限公司 | Liquid food packaging box |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6660120B2 (en) * | 2015-08-25 | 2020-03-04 | 日本製紙株式会社 | Container made of paper containing liquid contents for refilling |
ITUB20156303A1 (en) * | 2015-12-04 | 2017-06-04 | Gd Spa | Container for pasty or semi-liquid products. |
ITUA20162138A1 (en) * | 2016-04-01 | 2017-10-01 | Gd Spa | Container for pourable food products. |
IT201600110444A1 (en) * | 2016-11-03 | 2018-05-03 | Ipi Srl | METHOD OF REALIZATION WITHOUT SFRIDER CONTAINERS FOR VERSABILE PRODUCTS OF SHAPE DIFFERENT FROM THAT PARALLELEPIPED FROM A TAPE OF PACKAGING MATERIAL, AND CONTAINER SO OBTAINED |
JP2018030651A (en) * | 2017-11-29 | 2018-03-01 | 大日本印刷株式会社 | Paper beverage container with spout |
WO2019127585A1 (en) * | 2017-12-30 | 2019-07-04 | 厉彦明 | Blank for use in manufacture of liquid packaging container and packaging container |
WO2019127582A1 (en) * | 2017-12-30 | 2019-07-04 | 厉彦明 | Blank for manufacturing liquid packaging container and packaging container thereof |
WO2019127583A1 (en) * | 2017-12-30 | 2019-07-04 | 厉彦明 | Blank material for use in manufacturing liquid packaging container and packaging container thereof |
WO2019127586A1 (en) * | 2017-12-30 | 2019-07-04 | 厉彦明 | Blank for manufacturing liquid packaging container and packaging container |
WO2019127584A1 (en) * | 2017-12-30 | 2019-07-04 | 厉彦明 | Blank for manufacturing liquid packaging container and packaging container |
MX2020010758A (en) * | 2018-04-20 | 2020-11-09 | Tetra Laval Holdings & Finance | A sealed package containing a pourable food product and a sheet packaging material for producing a sealed package containing a pourable food product. |
IT201800005177A1 (en) * | 2018-05-08 | 2019-11-08 | Container in poly-coupled cellulosic material, with a truncated pyramid shape with a rectangular base, sealed by heat sealing or ultrasonic welding. |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3731872A (en) * | 1971-05-14 | 1973-05-08 | Union Camp Corp | Four-sided taper box |
DE3915899A1 (en) * | 1989-05-16 | 1990-11-22 | Edelmann Carl Gmbh | CARDBOARD PACKAGING CONTAINER WITH INTERNAL BAG TO RECEIVE LIQUIDS |
BR112013013796A2 (en) * | 2010-12-06 | 2016-09-13 | Tetra Laval Holdings & Finance | packaging container, and method for manufacturing a packaging container |
-
2013
- 2013-01-29 IT IT000052A patent/ITRM20130052A1/en unknown
-
2014
- 2014-01-22 WO PCT/IT2014/000020 patent/WO2014118813A1/en active Application Filing
- 2014-01-22 EP EP14717215.9A patent/EP2951102B1/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019128686A1 (en) * | 2017-12-29 | 2019-07-04 | 国力丰(中国)包装有限公司 | Liquid food packaging box |
Also Published As
Publication number | Publication date |
---|---|
EP2951102A1 (en) | 2015-12-09 |
ITRM20130052A1 (en) | 2014-07-30 |
WO2014118813A1 (en) | 2014-08-07 |
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